17-letter words containing l, a, c, h, o
- platinic chloride — chloroplatinic acid.
- ploughman's lunch — a light lunch consisting of bread and cheese, and sometimes pickled onions.
- pocket battleship — a small heavily armed and armored warship serving as a battleship because of limitations imposed by treaty.
- polioencephalitis — a disease characterized by inflammation of the gray matter of the brain.
- polymorphonuclear — (of a leukocyte) having a lobulate nucleus.
- polyvinyl alcohol — a colorless, water-soluble, thermoplastic resin, derived by the hydrolysis of polyvinyl acetate: used chiefly as an adhesive and as a sizing agent in the manufacture of textiles, paper, and plastics.
- pre-technological — of or relating to technology; relating to science and industry.
- prothoracic gland — either of a pair of endocrine glands in the anterior thorax of some insects, functioning to promote the series of molts from hatching to adulthood.
- pseudo-historical — of, pertaining to, treating, or characteristic of history or past events: historical records; historical research.
- psychoeducational — designating or of psychological methods, as intelligence tests, used in evaluating learning ability
- psychographically — Psychology. a graph indicating the relative strength of the personality traits of an individual.
- psychoprophylaxis — Lamaze method.
- purple shore crab — any of numerous crabs that live along the shoreline between the tidemarks, as Hemigrapsus nudus (purple shore crab) of the Pacific coast of North America.
- pythagorean scale — the major scale as derived acoustically by Pythagoras from the perfect fifth.
- republic of china — People's Republic of, a country in E Asia. 3,691,502 sq. mi. (9,560,990 sq. km). Capital: Beijing.
- republic-of-china — People's Republic of, a country in E Asia. 3,691,502 sq. mi. (9,560,990 sq. km). Capital: Beijing.
- reticulate python — a python, Python reticulatus, of southeastern Asia and the East Indies, sometimes growing to a length of 32 feet (10 meters): usually considered to be the largest snake in the world.
- rhetorical stress — stress required by the meaning of a line, as distinguished from that required by the meter.
- roll with a punch — to move in the same direction as a punch thrown at one so as to lessen its force
- roman catholicism — the faith, practice, and system of government of the Roman Catholic Church.
- san pedro channel — a strait between the mainland of SW California and Santa Catalina Island. About 20 miles (32 km) wide.
- scarlet firethorn — a Eurasian evergreen, thorny shrub, Pyracantha coccinea, of the rose family, having white, hairy flower clusters and bright red berries.
- school attendance — a measure of the number of children who attend school and the amount of time they are present
- school playground — school's outdoor recreation area
- scrophulariaceous — belonging to the Scrophulariaceae, the figwort family of plants.
- semi-biographical — of or relating to a person's life: He's gathering biographical data for his book on Milton.
- shirt-tail cousin — a distant cousin
- shoestring tackle — a tackle made around the ankles of the ball carrier.
- shorthold tenancy — letting of a dwelling for between one and five years at a fair rent
- shuttle diplomacy — diplomatic negotiations carried out by a mediator who travels back and forth between the negotiating parties.
- smarandache logic — neutrosophic logic
- social psychology — the psychological study of social behavior, especially of the reciprocal influence of the individual and the group with which the individual interacts.
- socratic elenchus — the drawing out of the consequences of a position in order to show them to be contrary to some accepted position
- special schooling — the system of educating children with special needs in schools designed to meet their needs
- spectroheliograph — an apparatus for making photographs of the sun with a monochromatic light to show the details of the sun's surface and surroundings as they would appear if the sun emitted only that light.
- spherical polygon — a closed figure formed by arcs of great circles on a spherical surface.
- spoonbill catfish — flathead catfish.
- stag's-horn coral — staghorn coral.
- stannous chloride — a white, crystalline, water-soluble solid, SnCl 2 ⋅2H 2 O, used chiefly as a reducing and tinning agent, and as a mordant in dyeing with cochineal.
- swaddling clothes — cloth for wrapping around a baby
- synchronistically — coincidence in time; contemporaneousness; simultaneousness.
- take the place of — replace, be a substitute for
- teachers' college — a college, usually having a four-year curriculum and granting a bachelor's degree, for training teachers for elementary and secondary schools
- teaching hospital — a hospital associated with a medical college and offering clinical and other facilities to those in various areas of medical study, as students, interns, and residents.
- technical college — school of further and vocational education
- technical offence — an action which is prohibited by law, but for which no blame can be attached to the person who commits it
- technical support — an advising and troubleshooting service provided by a manufacturer, typically a software or hardware developer, to its customers, often online or on the telephone.
- the black country — the formerly heavily industrialized region of central England, northwest of Birmingham
- the electoral map — a map showing the distribution of constituencies over a country
- the factory floor — all the workers in a factory